Hoi,
When you have it as one of the conditions of use for a website, the notion
of having the content available under two licenses is a given. These two
licenses do not have to be really similar. For instance in OmegaWiki we have
a combined CC-by and GFDL license. Many people do not stop whining about
their GFDL while they typically are not aware that it is not a license that
was even meant for projects like Wikipedia. It was the best that was
available at the time. For many applications the GFDL prevents cooperation
and consequently a lot of material does not come available under a much more
liberal license like the CC-by.
Thanks,
GerardM
On Nov 19, 2007 8:12 AM, Kwan Ting Chan <ktc(a)ktchan.info> wrote:
On Mon, 2007-11-19 at 02:37 +0000, Oldak Quill wrote:
Sorry Robert, I was wrong about this. A post at
cc-licenses mailing
list (
http://lists.ibiblio.org/pipermail/cc-licenses/2005-May/002265.html)
cleared things up. So only original works can be
dual licensed, and
derivatives have to be licensed under either GFDL or CC-by-sa and
_cannot_ be licensed under both?
IANAL.
Even if one or both license require you to license any derivatives work
under that particular license (or later version), that does not prevent
you from re/dual-licensing a derivative work taking a different license
as base as long as your re/dual license is the same license (or later
version if allowed). You can think of it as having two branch of work
available, one is license (say) under GFDL, and one CC. They just both
happen to have the same exact content.
In practise, you would of course have to have every editor from the
beginning agreeing to release under both license. If any single editor
release only under one, the work would then be only under that one
license, any derivative work can't then be under the other license.
KTC
--
Experience is a good school but the fees are high.
- Heinrich Heine
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